Stats Progress Quiz

What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range, but with a bunch of other stuff going on.

What is the standard deviation for the data given:

{5, 10, 7, 12, 0, 20, 15, 22, 8, 2}

• 1495

• 10.1

• 7.26

• 9

What is the standard deviation for the data given:

{12, 13, 29, 18, 61, 35, 21}

• 293.67

• 7

• 17.14

• 41.98

Which of the following lists all parts of the five number summary?

• Mean, Median, Mode, Range, and Total
• Minimum, Quartile 1, Median, Quartile 3, and Maximum 
• Smallest, Q1, Q2, Q3, and Q4
• Minimum, Maximum, Range, Mean, and Median

Find the Maximum of the following numbers:
84, 88, 72, 74, 98, 16, 94 

• 16
• 98
• 84
• There is no maximum.

Find the Minimum of the following numbers:
84, 88, 72, 74, 98, 16, 94 

• 16
• 98
• 94
• There is no minimum.

Find the Median (Q2) of the following numbers: 84, 88, 72, 74, 98, 16, 94 

• 16
• 98
• 84
• There is no median.

Find the Q1 (median of the lower half) of the following numbers: 84, 88, 72, 74, 98, 16, 94 

• 72
• 88
• 94
• There is no Lower Quartile.

Find the Q3 (median of upper half) of the following numbers: 84, 88, 72, 74, 98, 16, 94 

• 72
• 88
• 94
• There is no Upper Quartile.

Describe the shape of the graph.

• Skewed right
• Skewed left
• Uniform
• Symmetrical